As the party’s family and sexual violence spokesperson, Ms Williams said in the statement that she was "concerned" about Mr Jackson joining the party due to his comments during the Roast Busters scandal.

"I do not believe that his attitude towards victims of sexual abuse match what I expect of a member of the Labour Party. Especially a member of our caucus," the statement read.

"As someone who speaks for the victims of family and sexual violence, and as a survivor of such abuse, I cannot in good conscience support him as my colleague."